Scores of senior government officials, ambassadors, top security and army officers and tribal leaders declared on Monday to join the protesters and support their demands of peaceful power transition.

Government's official resignations were geared up by a string of violent acts against protesters, the latest of which was Friday 's shooting that claimed the lives of 52 people in the capital of Sanaa, the ministry's official said on condition of anonymity.

Meanwhile, the U.S. embassy in Sanaa urged its citizens on Monday to stay indoors due to instability in Yemen, according to a travel warning.

"Due to continued political instability and uncertainty in Sanaa and the rest of Yemen, the U.S. Embassy urges all U.S. citizens in Yemen to remain indoors this evening," the warning said.

SANAA, March 22 (Xinhua) -- At least four army troops were wounded in clashes with Republican Guards in southeastern Yemen late on Monday, a local government official said hours after scores of top army officers vowed to protect the "revolution." Full story.

SANAA, March 21 (Xinhua) -- The Yemeni army and the security forces issued a joint statement on Monday, saying they will maintain allegiance to the country and President Ali Abdullah Saleh.

They said in the statement over the latest escalating political developments in the country, that they will fulfill duties for the security of the country and vowed not to allow any attempt of military coup. Full story.

SANAA, March 21 (Xinhua) -- The Yemeni public prosecution on Monday issued an order to forcibly arrest ten men accused of involvement in Friday's shootings against the anti-government protesters at the sit-in outside Sanaa University in the capital, the Interior Ministry said. Full story.